All things must be different and the same. the reason I think this is because no certain evolution change has made the subject stay the same or make it completely different.
the alleles has made changes in the DNA structure therefore causing some sort of "evolution". to make a more specific example is in the ancient crocodiles, when they lived they had different environmental changes and how that effected them. somewhere the DNA structure was changed and made them what they are today.
all in all the evolution in this unit has shown what happens during the process and how it starts.
now this hasnt been graded but this should get you a decent start.
 
        
                    
             
        
        
        
1. 1800 years to get 1 billion population
        
             
        
        
        
When a comet is close to the sun, the force from the sun's radiation pushing against the comet making a dust and/or gas tail. The comet being close to the sun also forms the coma of a comet due to it's radiation. The only thing that doesn't exist while being close to the sun is the nucleus. In conclusion, When a long period comet is farthest from the sun in its orbit, C. the Nucleus exist.
Hope this helped! 
        
             
        
        
        
Answer: When she finished adding in everyone's ideas, Sofia stepped back and realized that she would need to make a new banner.
Explanation:
anwser on quiziz
 
        
             
        
        
        
The antibiotic penicillin is isolated from <u><em>Penicillium notatum</em></u> fungi
Penicillin was first discovered in 1928 and was used at St. Mary's Hospital, London, by Alexander Fleming to heal wounds due to its antibacterial properties. 
Explanation:
Fungi and bacteria usually produce antibiotics (as secondary metabolites) for defense mechanism. They do so to limit competition for resources with other neighboring fungi or bacteria in their environment.  This is why when a fungus or bacteria establishes itself in an environment, you hardly see other fungi or bacteria types growing in their vicinity. 
Learn More:
For more on antibiotics check out;
brainly.com/question/10320882
brainly.com/question/9202583
#LearnWithBrainly